On Sun 24-03-13 10:10:59, Marco Stornelli wrote:
> When a fs is frozen, a process can hang because we wait in
> uniterruptible state. We give the user the possibility to kill the process.
Yes, but it needs slightly more work as you probably know... (bailing out
properly when the signal arrives).
Honza
>
> Not-signed-off-by: Marco Stornelli <[email protected]>
> ---
>
> --- fs/super.c.orig 2013-03-24 09:56:33.000000000 +0100
> +++ fs/super.c 2013-03-24 09:58:41.000000000 +0100
> @@ -1198,7 +1198,7 @@ retry:
> if (unlikely(sb->s_writers.frozen >= level)) {
> if (!wait)
> return 0;
> - wait_event(sb->s_writers.wait_unfrozen,
> + wait_event_killable(sb->s_writers.wait_unfrozen,
> sb->s_writers.frozen < level);
> }
>
> @@ -1248,7 +1248,7 @@ static void sb_wait_write(struct super_b
> * of frozen and checking of the counter
> */
> prepare_to_wait(&sb->s_writers.wait, &wait,
> - TASK_UNINTERRUPTIBLE);
> + TASK_KILLABLE);
>
> writers = percpu_counter_sum(&sb->s_writers.counter[level-1]);
> if (writers)
--
Jan Kara <[email protected]>
SUSE Labs, CR
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
